Overview
Welcome to CASQ – the team behind some of the most exciting AI experiences in Microsoft 365.
We build:
- M365 Copilot Chat – Microsoft’s flagship generative AI product.
- Copilot Search – a comprehensive enterprise search solution for M365.

We’re on a mission to reach 100M+ monthly active users by year-end and compete (and collaborate) with the best in the business, including our friends at OpenAI.
Role Overview
We are looking for a Senior Software Engineer to help build and evolve Copilot Search and BizChat experiences across Microsoft 365 (Teams, Outlook, Office, and Microsoft Search). This role sits at the intersection of large scale distributed systems, search & retrieval, and AI powered experiences, with a solid emphasis on quality, grounding, and customer trust.
As a Senior Software Engineer, you are expected to own complex problem areas end to end, drive execution across a feature or subsystem, and raise the engineering bar for quality, reliability, and operational excellence—while collaborating closely with PM, Applied Science, and partner teams.




Microsoft’s mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.

Responsibilities
- Own and deliver complex features or subsystems within Copilot Search and BizChat, from design through production and iteration.
- Design, implement, and operate high scale backend services that power search, retrieval, grounding, and answer generation.
- Drive engineering quality across correctness, performance, reliability, security, and compliance.
- Partner closely with PM and Applied Science to translate customer and scenario needs into robust technical solutions.
- Lead execution across ambiguous problem spac

📌 Senior Software Engineer (Hyderabad)
🏢 Microsoft
📍 Hyderabad